CN205137209U - Straight following formula backlight unit and liquid crystal display - Google Patents
Straight following formula backlight unit and liquid crystal display Download PDFInfo
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- CN205137209U CN205137209U CN201520731645.2U CN201520731645U CN205137209U CN 205137209 U CN205137209 U CN 205137209U CN 201520731645 U CN201520731645 U CN 201520731645U CN 205137209 U CN205137209 U CN 205137209U
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- mode set
- plate
- prismatic lens
- diffuser plate
- down straight
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Abstract
The utility model discloses a straight following formula backlight unit and liquid crystal display, wherein, straight following formula backlight unit includes backplate, backlight and diffuser plate, the backplate includes the bottom plate with diffuser plate parallel arrangement to and enclose the curb plate of locating bottom plate edge, and backplate and the synthesis of diffusion hoarding are used for the mixed light space of mixed light, and the backlight holding is in the mixed light space and install on the backplate, straight following formula backlight unit still include the holding in the mixed light space and enclose the prism piece of locating the bottom plate edge, the first end of prism piece and the second end and bottom plate butt of diffuser plate butt, prism piece, the contained angle between prism piece and the diffuser plate be the acute angle, the prism piece is equipped with by several the prismatic prismatic form micro -structures of constituteing towards the surface of diffuser plate, prismatic length direction is mutually perpendicular with the direction that the first end of prism piece sensing second was held. The utility model discloses technical scheme solves the problem at the straight following formula backlight unit's of use the liquid crystal display edge dark angle of shadow.
Description
Technical field
The utility model relates to flat panel display technology field, particularly a kind of down straight aphototropism mode set and LCDs.
Background technology
At present, backlight module has been widely used in liquid crystal display and television set.Existing backlight module generally includes down straight aphototropism mode set and side entrance back module, and down straight aphototropism mode set cost is lower, but thickness is thicker; Side entrance back module thinner thickness, but cost is higher.
In order to make down straight aphototropism mode set more competitive, general way is the thickness reducing down straight aphototropism mode set, limit by cost, the LED quantity of down straight aphototropism mode set can not be increased significantly, because needs take into account center brightness and picture uniformity, therefore easily there is the problem at the dark angle of edge shadow.
Utility model content
Main purpose of the present utility model is to provide a kind of down straight aphototropism mode set, is intended to the problem solving the dark angle of liquid crystal display platen edge shadow using down straight aphototropism mode set.
For achieving the above object, the down straight aphototropism mode set that the utility model proposes, comprise backboard, backlight and diffuser plate, described backboard comprises the base plate be arranged in parallel with described diffuser plate, and be located in the side plate of described bottom edge, described backboard and described diffuser plate enclose the mixed light space for mixed light, and described backlight is placed in described mixed light space and is arranged on described backboard;
Described down straight aphototropism mode set also comprises and is placed in described mixed light space and is located in the prismatic lens of described bottom edge, the first end of described prismatic lens abuts with described diffuser plate, the second end of described prismatic lens abuts with described base plate, angle between described prismatic lens and described diffuser plate is acute angle, described prismatic lens is provided with towards the surface of described diffuser plate the prismatic microstructures be made up of several prisms, and the direction that the length direction of described prism and the first end of described prismatic lens point to the second end is perpendicular.
Preferably, the angle between described prismatic lens and described diffuser plate is 15 °-50 °.
Preferably, described prismatic lens comprises pet layer and is formed at the described prismatic microstructures on pet layer, the thickness of described prismatic lens is 0.215-0.28mm, the thickness of described pet layer is 0.18-0.26mm, the spacing of adjacent two described prisms of described prismatic microstructures is 0.2-0.6mm, and the rib corner angle of described prismatic microstructures are 90 ° ± 5 °.
Preferably, down straight aphototropism mode set also comprises the reflector plate be arranged between described base plate and described backlight.
Preferably, the rectangular setting of described reflector plate, described prismatic lens has four, and four described prismatic lenses are arranged along splicing with the four edges of described reflector plate respectively.
Preferably, described backlight also comprises pcb board and several LED lamp bead, and several described LED lamp bead array arrangement is also electrically connected at described pcb board.
Preferably, through hole is offered in the position of the corresponding several described LED lamp bead of described reflector plate, and described reflector plate is located on described pcb board, and described LED lamp bead is stretched out to be located at above described reflector plate by described through hole.
Preferably, described backlight also comprises the lens wrapping up described LED lamp bead, and described LED lamp bead and described lens are stretched out to be located at above described reflector plate by described through hole.
Preferably, down straight aphototropism mode set also comprises the optical diaphragm group be located at above described diffuser plate and is buckled in the glue frame be connected in optical diaphragm group and with side plate.
The utility model also proposes a kind of LCDs, comprise down straight aphototropism mode set, described down straight aphototropism mode set comprises backboard, backlight and diffuser plate, described backboard comprises the base plate be arranged in parallel with described diffuser plate, and be located in the side plate of described bottom edge, described backboard and described diffuser plate enclose the mixed light space for mixed light, and described backlight is placed in described mixed light space and is arranged on described backboard; Described down straight aphototropism mode set also comprises and is placed in described mixed light space and is located in the prismatic lens of described bottom edge, the first end of described prismatic lens abuts with described diffuser plate, the second end of described prismatic lens abuts with described base plate, angle between described prismatic lens and described diffuser plate is acute angle, described prismatic lens is provided with towards the surface of described diffuser plate the prismatic microstructures be made up of several prisms, and prism described in several points to the direction arrangement of the second end along the first end of described prismatic lens.
Technical solutions of the utility model have employed prismatic lens, and prismatic lens is located in bottom edge, the first end of prismatic lens abuts with diffuser plate, second end of prismatic lens abuts with base plate, angle between prismatic lens and diffuser plate is acute angle, therefore the light of the marginal position of backlight module can reflect through prismatic lens, and prismatic lens is provided with prismatic microstructures, based on the refracting characteristic of prism, prismatic lens can will be mapped to the diverging light with great visual angle of side plate by backlight, gather with prismatic lens towards the surface of diffuser plate about in the scope of 70 ° in outgoing, thus add the brightness of prismatic lens towards the surface of diffuser plate, therefore, it is possible to effectively improve the brightness of backlight module marginal position, solve the problem at the dark angle of edge shadow of the LCDs using this backlight module.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, the structure according to these accompanying drawings can also obtain other accompanying drawing.
Fig. 1 is the partial sectional view of the utility model down straight aphototropism mode set one embodiment;
Fig. 2 is the partial enlarged drawing of the prismatic lens of down straight aphototropism mode set in Fig. 1;
Fig. 3 is the structural representation at another visual angle of prismatic lens in Fig. 2;
Fig. 4 is the prismatic lens of down straight aphototropism mode set and the decomposing schematic representation of reflector plate in Fig. 1.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 100 | Backboard | 200 | Backlight |
| 300 | Diffuser plate | 400 | Prismatic lens |
| 500 | Reflector plate | 600 | Optical diaphragm group |
| 700 | Glue frame | 120 | Base plate |
| 140 | Side plate | 220 | Pcb board |
| 240 | LED lamp bead | 260 | Lens |
| 420 | Prism | 440 | Pet layer |
| 520 | Through hole |
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Need explanation, all directionality instruction (such as up, down, left, right, before and afters in the utility model embodiment ...) only for explaining the relative position relation, motion conditions etc. under a certain particular pose (as shown in drawings) between each parts, if when this particular pose changes, then directionality instruction also correspondingly changes thereupon.
In addition, in the utility model, relate to the description of " first ", " second " etc. only for describing object, and instruction can not be interpreted as or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In addition; technical scheme between each embodiment can be combined with each other; but must be can be embodied as basis with those of ordinary skill in the art; when technical scheme combination occur conflicting maybe cannot realize time people should think that the combination of this technical scheme does not exist, also not the utility model require protection domain within.
The utility model proposes a kind of down straight aphototropism mode set.
Referring to figs. 1 through the partial sectional view that Fig. 4, Fig. 1 are the utility model down straight aphototropism mode set one embodiment; Fig. 2 is the partial enlarged drawing of the prismatic lens of down straight aphototropism mode set in Fig. 1; Fig. 3 is the structural representation at another visual angle of prismatic lens in Fig. 2; Fig. 4 is the prismatic lens of down straight aphototropism mode set and the decomposing schematic representation of reflector plate in Fig. 1.
In the utility model embodiment, refer to Fig. 1 to Fig. 3, this down straight aphototropism mode set comprises backboard 100, backlight 200 and diffuser plate 300, backboard 100 comprises the base plate 120 be arranged in parallel with diffuser plate 300, and be located in the side plate 140 at base plate 120 edge, backboard 100 and diffuser plate 300 enclose the mixed light space for mixed light, and backlight 200 is placed in mixed light space and is arranged on backboard 100;
Down straight aphototropism mode set also comprises and is placed in mixed light space and is located in the prismatic lens 400 at base plate 120 edge, the first end of prismatic lens 400 abuts with diffuser plate 300, the second end of prismatic lens 400 abuts with base plate 120, angle between prismatic lens 400 and diffuser plate 300 is acute angle, prismatic lens 400 is provided with towards the surface of diffuser plate 300 prismatic microstructures be made up of several prisms 420, and the direction that the length direction of prism 420 and the first end of prismatic lens 400 point to the second end is perpendicular.
Technical solutions of the utility model have employed prismatic lens 400, and prismatic lens 400 is located in base plate 120 edge, prismatic lens 400 one end abuts with diffuser plate 300, the other end abuts with base plate 120, angle between prismatic lens 400 and diffuser plate 300 is acute angle, therefore the light of the marginal position of backlight module can reflect through prismatic lens 400, and prismatic lens 400 is provided with prismatic microstructures 420, based on the refracting characteristic of prism 420, prismatic lens 400 can will be mapped to the diverging light with great visual angle of side plate 140 by backlight 200, gather with prismatic lens 400 towards the surface of diffuser plate 300 about in the scope of 70 ° in outgoing, thus add the brightness of prismatic lens 400 towards the surface of diffuser plate 300, therefore, it is possible to effectively improve the brightness of backlight module marginal position, solve the problem at the dark angle of edge shadow of the LCDs using this backlight module.
Please consult Fig. 3 further, the included angle A 1 between prismatic lens 400 and diffuser plate 300 is acute angle.Due to the light reflected through prismatic lens 400 gather with prismatic lens 400 towards the surface of diffuser plate 300 about in the scope of 70 ° in outgoing, if the angle now between prismatic lens 400 and diffuser plate 300 is right angle or obtuse angle, the angle of the light then penetrated by prismatic lens 400 and diffuser plate 300 is larger, be unfavorable for the brightness improving backlight module marginal position, preferably, the included angle A 1 between prismatic lens 400 and diffuser plate 300 is 15 °-50 °.
The concrete size of prismatic lens 400 can be selected as required, refer to Fig. 3, in the present embodiment, preferably, the prismatic microstructures 420 that prismatic lens 400 comprises pet layer 440 and is formed on pet layer 440, the thickness H1 of prismatic lens 400 is 0.215-0.28mm, and the thickness H2 of pet layer 440 is 0.18-0.26mm, the space D of adjacent two prisms 420 of prismatic microstructures 420 is 0.2-0.6mm, and the angle of the rib corner angle A2 of prismatic microstructures 420 is 90 ° ± 5 °.Wherein, rib corner angle A2 is the angle between two outer surfaces of a prism 420.
Preferably, down straight aphototropism mode set also comprises the reflector plate 500 be arranged between base plate 120 and backlight 200.Reflector plate 500 can carry out diffuse reflection, is broken up by the light received, makes uniform light, thus the light that reflector plate 500 reflexes on diffuser plate 300 is relatively more even, can avoid the ray waste of directive base plate 120 simultaneously, improve light utilization.
Preferably, the rectangular setting of reflector plate 500, prismatic lens 400 has four, and four prismatic lenses 400 are arranged along splicing with the four edges of reflector plate 500 respectively.The concrete set-up mode of reflector plate 500 and prismatic lens 400 can be chosen as required, in the present embodiment, refer to Fig. 4, four prismatic lenses 400 splice with the four edges edge of reflector plate 500 respectively, can prevent the light reflected from reflector plate 500 from being spilt by the gap of reflector plate 500 and prismatic lens 400, can light utilization be improved.
Refer to Fig. 1, preferably, backlight 200 also comprises pcb board 220 and several LED lamp bead 240, and several LED lamp bead 240 array arrangement is also electrically connected at pcb board 220.Pcb board 220 is for driving LED lamp pearl 240, and LED lamp bead 240 is arranged on pcb board 220 uniformly to provide uniform light.
Refer to Fig. 1 and Fig. 4, preferably, through hole 520 is offered in the position of the corresponding several LED lamp bead 240 of reflector plate 500, and reflector plate 500 is located on pcb board 220, and LED lamp bead 240 is stretched out to be located at above reflector plate 500 by through hole 520.The light part that LED lamp bead 240 sends directly enters diffuser plate 300, and a part enters diffuser plate 300 after reflector plate 500 reflects, and last part enters diffuser plate 300 after being reflected by prismatic lens 400.By arranging through hole 520 on reflector plate 500, not affecting the setting position of LED lamp bead 240, the stop of pcb board 220 can also be prevented simultaneously, reach better reflecting effect.
Preferably, backlight 200 also comprises the lens 260 of parcel LED lamp bead 240, and LED lamp bead 240 and lens 260 are stretched out to be located at above reflector plate 500 by through hole 520.By arranging the lens 260 of parcel LED lamp bead 240, the light that LED lamp bead 240 sends first is reflected by lens 260, can improve the uniformity of the light of backlight 200.
Preferably, down straight aphototropism mode set also comprises the optical diaphragm group 600 be located at above diffuser plate 300 and is buckled in the glue frame 700 be connected in optical diaphragm group 600 and with side plate 140.Optical diaphragm group 600 can reflect the light penetrated from diffuser plate 300, improves the angle distribution of light, is focused on by light in positive angle, improve the bright dipping luminous flux of positive angle, improve light utilization, provide uniform area source, glue frame 700 is for fixed optics diaphragm group 600.
The utility model also proposes a kind of LCDs, this LCDs comprises down straight aphototropism mode set, the concrete structure of this down straight aphototropism mode set is with reference to above-described embodiment, because this LCDs have employed whole technical schemes of above-mentioned all embodiments, therefore all beneficial effects that the technical scheme at least having above-described embodiment is brought, this is no longer going to repeat them.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every under inventive concept of the present utility model; utilize the equivalent structure transformation that the utility model description and accompanying drawing content are done, or directly/be indirectly used in other relevant technical fields to include in scope of patent protection of the present utility model.
Claims (10)
1. a down straight aphototropism mode set, it is characterized in that, comprise backboard, backlight and diffuser plate, described backboard comprises the base plate be arranged in parallel with described diffuser plate, and be located in the side plate of described bottom edge, described backboard and described diffuser plate enclose the mixed light space for mixed light, and described backlight is placed in described mixed light space and is arranged on described backboard;
Described down straight aphototropism mode set also comprises and is placed in described mixed light space and is located in the prismatic lens of described bottom edge, the first end of described prismatic lens abuts with described diffuser plate, the second end of described prismatic lens abuts with described base plate, angle between described prismatic lens and described diffuser plate is acute angle, described prismatic lens is provided with towards the surface of described diffuser plate the prismatic microstructures be made up of several prisms, and the direction that the length direction of described prism and the first end of described prismatic lens point to the second end is perpendicular.
2. down straight aphototropism mode set as claimed in claim 1, it is characterized in that, the angle between described prismatic lens and described diffuser plate is 15 °-50 °.
3. down straight aphototropism mode set as claimed in claim 1, it is characterized in that, described prismatic lens comprises pet layer and is formed at the described prismatic microstructures on pet layer, the thickness of described prismatic lens is 0.215-0.28mm, the thickness of described pet layer is 0.18-0.26mm, the spacing of adjacent two described prisms of described prismatic microstructures is 0.2-0.6mm, and the rib corner angle of described prismatic microstructures are 90 ° ± 5 °.
4. down straight aphototropism mode set as claimed in claim 1, is characterized in that, also comprise the reflector plate be arranged between described base plate and described backlight.
5. down straight aphototropism mode set as claimed in claim 4, it is characterized in that, the rectangular setting of described reflector plate, described prismatic lens has four, and four described prismatic lenses are arranged along splicing with the four edges of described reflector plate respectively.
6. down straight aphototropism mode set as claimed in claim 4, it is characterized in that, described backlight also comprises pcb board and several LED lamp bead, and several described LED lamp bead array arrangement is also electrically connected at described pcb board.
7. down straight aphototropism mode set as claimed in claim 6, it is characterized in that, through hole is offered in the position of the corresponding several described LED lamp bead of described reflector plate, and described reflector plate is located on described pcb board, and described LED lamp bead is stretched out to be located at above described reflector plate by described through hole.
8. down straight aphototropism mode set as claimed in claim 7, it is characterized in that, described backlight also comprises the lens wrapping up described LED lamp bead, and described LED lamp bead and described lens are stretched out to be located at above described reflector plate by described through hole.
9. down straight aphototropism mode set as claimed in claim 1, is characterized in that, also comprises the optical diaphragm group be located at above described diffuser plate and is buckled in the glue frame be connected in optical diaphragm group and with side plate.
10. a LCDs, is characterized in that, comprises down straight aphototropism mode set as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731645.2U CN205137209U (en) | 2015-09-18 | 2015-09-18 | Straight following formula backlight unit and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731645.2U CN205137209U (en) | 2015-09-18 | 2015-09-18 | Straight following formula backlight unit and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205137209U true CN205137209U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520731645.2U Expired - Fee Related CN205137209U (en) | 2015-09-18 | 2015-09-18 | Straight following formula backlight unit and liquid crystal display |
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| CN (1) | CN205137209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106254803A (en) * | 2016-10-08 | 2016-12-21 | 珠海经济特区金品电器有限公司 | Display |
| CN109895687A (en) * | 2019-03-06 | 2019-06-18 | 广州通巴达电气科技有限公司 | Shine lamp plate and display screen |
| WO2021036116A1 (en) * | 2019-08-28 | 2021-03-04 | 武汉华星光电技术有限公司 | Backlight module and vehicle-mounted display device |
-
2015
- 2015-09-18 CN CN201520731645.2U patent/CN205137209U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106254803A (en) * | 2016-10-08 | 2016-12-21 | 珠海经济特区金品电器有限公司 | Display |
| CN106254803B (en) * | 2016-10-08 | 2023-08-15 | 珠海经济特区金品电器有限公司 | Display device |
| CN109895687A (en) * | 2019-03-06 | 2019-06-18 | 广州通巴达电气科技有限公司 | Shine lamp plate and display screen |
| WO2021036116A1 (en) * | 2019-08-28 | 2021-03-04 | 武汉华星光电技术有限公司 | Backlight module and vehicle-mounted display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20190918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |